The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.
# Object: 612213
# Created Sun Nov 24 02:07:39 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 58 observations of 58
# Arc: 15.92y
# First observation: 2001/03/25
# Last observation: 2017/02/23
# Chi-squared of fit: 66.31 DOF: 110 RMS: 0.19
# Min/Max residuals: -0.53 0.75
# Exact a, adot, b, bdot, g, gdot:
1.658437E-05 2.428605E-02 1.529433E-06 -3.964991E-04 2.453376E-02 -3.029017E-04
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
0.727056 -160.227353 0.255101 0.012125 -0.968707 2451993.849293
# Heliocentric elements and errors
Epoch: 2451994.5000 = 2001/03/26
Mean Anomaly: 334.06707 +/- 0.000
Argument of Peri: 170.44860 +/- 0.000
Long of Asc Node: 56.76199 +/- 0.000
Inclination: 1.17099 +/- 0.000
Eccentricity: 0.03568721 +/- 0.0000
Semi-Major Axis: 43.09625683 +/- 0.0000
Time of Perihelion: 2459438.5070 +/- 0.0
Perihelion: 41.55827170 +/- 0.0000
Aphelion: 44.63424195 +/- 0.0000
Period (y) 282.9225 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.34773583 +/- 0.0000
Ecliptic Y -13.87068605 +/- 0.0000
Ecliptic Z 0.51730358 +/- 0.0000
Ecliptic XDOT 0.00093977 +/- 0.0000
Ecliptic YDOT -0.00253629 +/- 0.0000
Ecliptic ZDOT -0.00004448 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.72419807 +/- 0.0000
Geocenter to KBO 40.76019312 +/- 0.0000
# Hcoef: 7.15
The following table shows the complete astrometric record for 612213. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (612213) followed by the observatory code and reference code for the source of the astrometry.
2001 03 25.34855 13 14 07.27 -07 03 36.4 25.0R 612213 695 Cd1722 2001 03 25.47594 13 14 06.69 -07 03 32.8 612213 695 Cd1722 2001 04 25.21181 13 11 48.57 -06 49 40.3 23.2R 612213 688 Cd1722 2001 04 25.30432 13 11 48.14 -06 49 38.1 612213 688 Cd1722 2001 05 22.96925 13 10 02.80 -06 39 17.1 23.0R 612213 807 Cd1722 2001 05 23.06472 13 10 02.49 -06 39 15.3 612213 807 Cd1722 2001 06 08.99605 13 09 20.23 -06 35 15.8 612213 304 Cd1722 2001 06 09.04513 13 09 20.14 -06 35 15.5 612213 304 Cd1722 2002 04 07.14140 13 18 20.88 -07 30 36.0 22.2R 612213 807 Cf4616 2002 04 07.20167 13 18 20.61 -07 30 34.5 612213 807 Cf4616 2002 04 08.17780 13 18 16.15 -07 30 07.8 612213 807 Cf4616 2003 05 01.33761 13 21 44.23 -07 52 33.4 23.2R 612213 568 Ch9859 2003 05 01.45486 13 21 43.74 -07 52 30.3 612213 568 Ch9859 2004 04 26.32494 13 27 15.13 -08 26 45.3 23.5g 612213 568 C~0VDO 2004 04 26.34619 13 27 15.04 -08 26 44.9 23.6g 612213 568 C~0VDO 2004 04 26.37253 13 27 14.91 -08 26 44.3 23.5g 612213 568 C~0VDO 2005 05 04.34109 13 31 54.73 -08 55 42.2 23.2r 612213 568 C~0VDO 2005 05 04.36902 13 31 54.62 -08 55 41.7 23.8r 612213 568 C~0VDP 2005 05 04.41658 13 31 54.38 -08 55 40.5 23.8r 612213 568 C~0VDP 2005 05 05.38616 13 31 50.26 -08 55 17.0 23.8r 612213 568 C~0VDP 2006 04 27.11801 13 37 42.61 -09 30 46.6 21.9R 612213 807 Cr3558 2006 04 27.18995 13 37 42.29 -09 30 44.7 612213 807 Cr3558 2006 04 28.07173 13 37 38.30 -09 30 22.1 612213 807 Cr3558 2013 04 04.44170 14 16 40.760 -13 13 56.16 22.9r 612213 568 C~1XPk 2013 04 04.48219 14 16 40.589 -13 13 55.29 23.3r 612213 568 C~1XPk 2013 04 04.52263 14 16 40.409 -13 13 54.28 612213 568 C~1XPk 2013 04 06.61498 14 16 31.286 -13 13 08.17 23.6r 612213 568 C~1XPk 2013 04 08.41579 14 16 23.337 -13 12 27.54 23.2r 612213 568 C~1XPk 2013 05 11.45033 14 13 49.748 -12 59 29.89 23.6r 612213 568 C~1XPk 2013 05 12.44830 14 13 45.248 -12 59 07.23 23.4r 612213 568 C~1XPk 2013 07 04.30754 14 10 59.598 -12 45 28.08 23.7r 612213 568 C~1XPk 2013 07 06.31531 14 10 57.284 -12 45 17.91 23.5r 612213 568 C~1XPk 2014 02 01.64281 14 24 20.776 -13 54 20.12 23.2r 612213 568 C~1XPk 2014 02 02.64065 14 24 21.243 -13 54 21.81 23.5r 612213 568 C~1XPk 2014 02 03.58522 14 24 21.607 -13 54 23.46 23.5r 612213 568 C~1XPk 2014 02 24.58951 14 24 07.415 -13 53 06.24 612213 568 C~1XPk 2014 02 25.57248 14 24 05.760 -13 52 57.78 23.2r 612213 568 C~1XPk 2014 02 28.52057 14 24 00.263 -13 52 29.72 23.3r 612213 568 C~1XPk 2014 04 04.42334 14 22 06.291 -13 42 58.51 23.3r 612213 568 C~1XPk 2014 04 04.46261 14 22 06.124 -13 42 57.71 23.2r 612213 568 C~1XPk 2014 04 05.48108 14 22 01.759 -13 42 35.84 23.6r 612213 568 C~1XPk 2014 04 05.53642 14 22 01.501 -13 42 34.77 23.0r 612213 568 C~1XPk 2014 05 22.45377 14 18 26.382 -13 24 47.89 23.3r 612213 568 C~1XPk 2014 05 25.44602 14 18 13.890 -13 23 46.39 23.4r 612213 568 C~1XPk 2015 01 26.64290 14 29 34.582 -14 21 38.30 23.8r 612213 568 C~1XPk 2015 04 25.27747 14 25 58.75 -14 03 54.7 612213 W84 C~2fbj 2015 04 26.27329 14 25 54.03 -14 03 31.4 23.2V 612213 W84 C~2fbj 2015 04 26.30860 14 25 53.86 -14 03 31.0 612213 W84 C~432T 2015 04 26.34307 14 25 53.69 -14 03 30.2 612213 W84 C~2fbj 2016 02 14.57372 14 35 04.425 -14 49 33.75 23.3r 612213 568 C~2KO1 2016 02 14.57878 14 35 04.444 -14 49 33.66 26.1u 612213 568 C~2KO1 2016 02 14.62156 14 35 04.399 -14 49 33.36 25.4u 612213 568 C~2KO1 2016 02 14.62583 14 35 04.417 -14 49 33.50 24.7u 612213 568 C~2KO1 2016 02 14.63445 14 35 04.384 -14 49 33.41 25.1u 612213 568 C~2KO1 2016 02 14.63952 14 35 04.388 -14 49 33.39 23.3r 612213 568 C~2KO1 2016 05 06.34492 14 30 30.758 -14 27 45.94 23.0r 612213 568 C~2KO1 2016 05 06.41084 14 30 30.431 -14 27 44.49 23.3r 612213 568 C~2KO1 2017 02 23.64639 14 40 21.667 -15 15 58.75 612213 568 C~2KO1
The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.
1 0.0000 0.00 -0.32 0.00 -0.27
2 0.0003 0.00 -0.53 0.00 -0.06
3 0.0845 0.00 0.17 0.00 -0.01
4 0.0848 0.00 -0.14 0.00 -0.21
5 0.1605 0.00 -0.07 0.00 0.07
6 0.1608 0.00 -0.19 0.00 0.17
7 0.2071 0.00 0.66 0.00 0.08
8 0.2072 0.00 0.75 0.00 -0.12
9 1.0343 0.00 -0.18 0.00 0.15
10 1.0345 0.00 -0.04 0.00 0.01
11 1.0372 0.00 -0.17 0.00 0.10
12 2.0999 0.00 -0.26 0.00 0.02
13 2.1002 0.00 0.09 0.00 0.18
14 3.0882 0.00 -0.23 0.00 0.32
15 3.0883 0.00 -0.14 0.00 0.18
16 3.0884 0.00 -0.30 0.00 0.10
17 4.1095 0.00 0.07 0.00 -0.10
18 4.1096 0.00 0.25 0.00 -0.28
19 4.1097 0.00 -0.22 0.00 -0.24
20 4.1124 0.00 0.16 0.00 -0.37
21 5.0890 0.00 0.30 0.00 0.06
22 5.0892 0.00 0.47 0.00 0.12
23 5.0916 0.00 0.25 0.00 0.19
24 12.0276 0.00 -0.17 0.00 -0.06
25 12.0277 0.00 -0.06 0.00 -0.07
26 12.0279 0.00 -0.08 0.00 0.05
27 12.0336 0.00 -0.01 0.00 -0.23
28 12.0385 0.00 0.08 0.00 -0.09
29 12.1290 0.00 -0.19 0.00 0.04
30 12.1317 0.00 -0.05 0.00 -0.03
31 12.2764 0.00 -0.22 0.00 0.12
32 12.2819 0.00 -0.13 0.00 0.01
33 12.8578 0.00 -0.02 0.00 -0.25
34 12.8605 0.00 -0.08 0.00 0.04
35 12.8631 0.00 -0.02 0.00 -0.19
36 12.9206 0.00 -0.06 0.00 -0.04
37 12.9233 0.00 0.07 0.00 -0.11
38 12.9313 0.00 0.15 0.00 -0.12
39 13.0269 0.00 0.02 0.00 0.06
40 13.0270 0.00 0.08 0.00 0.03
41 13.0298 0.00 0.20 0.00 0.13
42 13.0299 0.00 -0.02 0.00 0.01
43 13.1584 0.00 -0.02 0.00 0.01
44 13.1666 0.00 -0.06 0.00 -0.00
45 13.8406 0.00 0.00 0.00 0.02
46 14.0833 0.00 -0.08 0.00 0.05
47 14.0860 0.00 0.04 0.00 0.37
48 14.0861 0.00 0.04 0.00 -0.05
49 14.0862 0.00 -0.02 0.00 -0.06
50 14.8918 0.00 0.06 0.00 -0.09
51 14.8918 0.00 0.38 0.00 -0.01
52 14.8919 0.00 0.03 0.00 0.19
53 14.8919 0.00 0.33 0.00 0.04
54 14.8920 0.00 -0.10 0.00 0.11
55 14.8920 0.00 0.00 0.00 0.12
56 15.1157 0.00 -0.13 0.00 0.02
57 15.1158 0.00 -0.26 0.00 -0.01
58 15.9187 0.00 -0.11 0.00 -0.12
The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.
612213 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.985 42.985 42.985 ecceobj 0.034 0.034 0.034 incobj 1.173 1.173 1.173 qmin 40.970 40.977 40.964 qmax 45.779 45.794 45.763 amean 43.297 43.297 43.297 amin 42.962 42.961 42.964 amax 43.641 43.640 43.641 emean 0.031 0.031 0.031 emin 0.013 0.013 0.013 emax 0.050 0.050 0.049 imean 1.175 1.175 1.175 imin 0.176 0.176 0.176 imax 1.831 1.831 1.832 excite_mean 0.038 0.038 0.038 fracstop 1.000 1.000 1.000 cjmean 3.091 3.091 3.091 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 libcent 1 -180.0 -180.0 -180.0 libamp 1 -180.0 -180.0 -180.0 libcent 2 -180.0 -180.0 -180.0 libamp 2 -180.0 -180.0 -180.0 libcent 3 -180.0 -180.0 -180.0 libamp 3 -180.0 -180.0 -180.0 libcent 4 -180.0 -180.0 -180.0 libamp 4 -180.0 -180.0 -180.0 kozaimean 160.6 160.7 160.6 kozaiamp 179.9 179.9 179.9